Radon/gamma ray issues in countertop materials
Are there any reputable (independent) studies regarding reports of high emissions of radiation in some countertop materials? There are accusations that some of the studies are funded by synthetic countertop manufacturers. There have also been rumors that synthetic and concrete materials can also have radiation emissions since they too use products from the earth. I planning to do granite countertops, but wonder if it's possible to determine ahead of time if a particular choice has a high reading.
Thanks for any thoughts on this matter.